Multiple choice

Consider the following statements:

  1. Flint glass is used in the preparation of lenses and prisms.
  2. The waves received by our television sets are cosmic waves.

Which of the given statements is/are correct?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement (1) is correct. Flint glass is used in the preparation of lenses and prisms. Statement (2) is incorrect. The waves received by our television sets are micro waves (radio waves).